Re: Three intermittent, annoying X11 problems
Re: Three intermittent, annoying X11 problems
- Subject: Re: Three intermittent, annoying X11 problems
- From: Rich Cook <email@hidden>
- Date: Wed, 5 Jul 2006 19:46:06 -0700
I seem to remember there is a way to start X11 so that it runs X in
super-chatty mode. Maybe that would help. Anyone remember how to
pass a verbose flag to the X server under X11.app?
On Jul 5, 2006, at 7:42 PM, Bob Portmann wrote:
--- Mike Zuhl <email@hidden> wrote:
Maybe someone has seen these problems and can give me a clue. They
happen intermittently and I have been unsuccessful at forcing them
to happen. (BTW, I'm running X11 1.1 - XFree86 4.4.0, OS X 10.4.6,
on a PPC mini. I use X11 constantly so it may be running for days.)
1) "Infant window death." Starting a new xterm, the window pops up
and
immediately closes. Usually happens as the third or forth window
opened after starting X11. I have never seen it happen when a
remote host starts an xterm. Immediately sStarting a new xterm
almost always succeeds. This is not a really annoying problem,
but
it may be a symptom of the problem(s) causing the other two
issues.
Yes, I used to see this often (maybe 10% of the time) but for some
reason it has not been happening for a while. I'm not sure what
changed the behavior for me. I mostly use gnome-terminal instead of
xterm, which may play some role. But I used to see it with
gnome-terminal occasionally as well. People always claim that it is
due to a problem in one of the shell start-up files, but I've had it
happen with a very minimal .bash_profile so I don't think that is the
whole story. I suspect it is a problem in apple-x11. I'd like to
think that apple has fixed this problem but you seem to be running an
up to date system so who knows.
2) "Disappearing /dev/tty." Only on local xterms, occasionally won't
get (or possibly lose somewhere) its controlling terminal
binding.
You can test it by "echo x >/dev/tty". The expected result is
"x"
being echoed, but sometimes you get "/dev/tty not initialized" or
something like that. In such a window ctrl-C won't interrupt
running
programs. I usually discover it when I can't kill a program and
then check /dev/tty, altho I have seen it just checking /dev/tty
first, so I can't be sure whether it's not set up or loses the
binding somewhere along the way.
I wrote some test scripts to try and force this problem but I
created
(serially) several thousand windows without seeing it, so I
suspect
there's a race condition that I wasn't able to provoke.
Never noticed this.
3) "Windows Banished to the Void." This is by far the most annoying.
I'll have a number of X11 windows minimized and I'm using Mac
apps.
Then I want to restore an X11 window and find them all missing
from
the doc. They still show up on X11's "Window" menu, but
selecting them
there won't make them restore, either. New X11 windows, started
either
by the "Applications" menu or fired off from another host do show
up
normally. Running "xwininfo" from the command line (on the Mac
or any
connected host) shows that the windows and all their information
is
still there. So far I have found no way to get the windows back.
Note that *all* the existing windows are gone. I know that some
of them were minimized, but I can't be sure that there weren't
non-minimized windows that followed their brethren to the Void.
Last time this happened (yesterday) I went in and killed
quartz-wm,
the window manager. As with other X-servers, when the window
manager
died all of the hidden windows appeared on the screen without the
window manager decorations. Then X11 exited, probably because
the
the window manager was gone.
I think I've seen something like this but it has been rare and just
seemed to me to be x11 or more likely quartz-wm crashing. It's been
infrequent enough that I didn't worry about it.
Bob
Any thoughts?
--Mike Zuhl
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